Comment 0 for bug 1476710

On event: create_snapshot is called with gluster native driver with a setup where the backing volume does not support snapshots.
We expect: produce a gracious error message
What happens: breakage with KeyError.
Reason: glusterfs_versions dict is queried with wrongly constructed key.

Note that this was found through code audit. We'll post a bactrace as soon as we can produce the issue.